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Stainless 316 Mbspp X Fnpt

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Description & Features

This straight stainless steel 316 fitting adapts a 1/4" male BSPP (G 1/4 - 19) connection to a 1/4" female NPT (1/4 - 18 NPTF) connection. The Stainless 316 Mbspp X Fnpt adapter is constructed from durable stainless steel.

It has a wrench flat size of 19mm and an overall length of 32.1mm.

SKU: SS9035S-04-04

Supplier Part Number (MPN): SS9035S-04-04

Specifications

Connection Size 1
1/4 in
Connection Size 2
1/4 in
Connection Type
FNPT, Male BSP
Connection Type 1
Male BSPP
Connection Type 2
Female NPT
Dimension Standards
ANSI B1.20.3, BS 5200, ISO 1179, ISO 8434-6
Dimensions
33 mm L
Fitting Type
Adapter
Hex Size
19 mm
Material
Stainless Steel
Material Construction
316 Stainless Steel
Series
SS9035S Series
Thread Size
1/4-19 x 1/4-18

Product Questions & Answers (2)

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Question by: Dean S on Aug 19, 2025, 1:12 PM
So this fitting is stainless steel, right? I need something that won't rust out on me.
Answer by: Customer Support on Aug 20, 2025, 9:04 PM
Constructed from 316 stainless, it offers very good corrosion resistance. That should hold up well for you.
Question by: Danny M on Dec 15, 2025, 11:24 AM
got a piece of equipment that runs BSPP fittings but the port i'm connecting to on this end is NPT, will this adapter sort that out?
Answer by: Customer Support on Dec 17, 2025, 9:32 AM
That's what it's built for. One end is a 1/4" male BSPP (G 1/4 - 19) and the other is a 1/4" female NPT (1/4 - 18 NPTF), so it bridges those two thread standards in a straight configuration. Both sides are the same 1/4" size, so you're not stepping up or down on the port diameter either.

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